Seal Proof Engineering
Technical datasheet
Mechanical Shaft Seals
Pusher Seals
Single-acting, unbalanced, inside-mounted seal for water, chemical and sewage pump duties.
Description
A single-acting, unbalanced, inside-mounted pusher seal, dependent on direction of rotation. Faces are available in Stellite, carbon, ceramic, tungsten carbide, silicon carbide and Lecrolloy.
Metal parts are supplied in SS 316 or SS 304, with elastomer or PTFE secondary seals to suit the service.
Specifications
| Seal characteristics | Single acting · Unbalanced · Inside mounted · Dependent of direction of rotation |
|---|---|
| Shaft diameter d1 | 10 mm to 100 mm |
| Pressure p | 08 bar (max) |
| Temperature t | -20°C to +200°C |
| Velocity v | 20 m/sec |
Summary envelope: shaft 10–100 mm · pressure to 8 bar
Materials of construction
- Face materials: Stellite, Carbon, Ceramic, Tungsten Carbide, Silicon Carbide, Lecrolloy
- Metal parts: SS 316, SS 304
- Secondary seal: Elastomers, PTFE
Applications
- Water pumps
- Circulation pumps for central heating
- Chemical process pumps
- Sewage and submersible pumps